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Gauthier OnclinPhoto: si.robi, CC BY-SA 2.0, via Wikimedia Commons (cropped)

TennisATPRight-handed

Gauthier Onclin

BelgiumAge and results

Gauthier Onclin is a tennis player on the ATP Tour who reached a career-high ranking of No. 158 on August 24, 2026.

5 ATP Tour matches

Updated

2026 record1-2Career highNo. 158Aug 24, 2026Agatha's record1-23 graded calls since Oct 1, 2026

About Gauthier Onclin

Gauthier Onclin is a tennis player on the ATP Tour. Born on February 26, 2001, in Liege, Belgium, he plays right-handed with a two-handed backhand and turned pro in 2022. His coach is Steve Darcis. Onclin reached a career-high ATP Tour ranking of No. 158 on August 24, 2026.

Agatha Research DeskUpdated Oct 21, 2026

Match history5

Every ATP Tour, Grand Slam and Olympic main-draw match in our records, newest first. A walkover is listed but never counted in a record.

2026: 5-6

DateTournamentRoundOpponentResultScoreSurface
Oct 21BNP Paribas Fortis European OpenRound 2Jan-Lennard StruffL4-6, 2-6Hard
Oct 18BNP Paribas Fortis European OpenQualifying FinalClement ChidekhL2-6, 6-7(3)Hard
Oct 17BNP Paribas Fortis European OpenQualifying 1st RoundHarry WendelkenW6-3, 4-6, 6-0Hard
Aug 25US OpenQualifying 1st RoundVitaliy SachkoL5-7, 5-7Hard
Jun 24WimbledonQualifying 2nd RoundShintaro MochizukiL2-6, 6-4, 3-6Grass
Jun 22WimbledonQualifying 1st RoundLorenzo GiustinoW6-3, 7-5Grass
Jun 10Boss OpenRound 2Giovanni Mpetshi PerricardL6-7(1), 2-6Grass
Jun 8Boss OpenRound 1Fabian MarozsanW7-6(6), 6-3Grass
Jun 7Boss OpenQualifying FinalMarc-Andrea HueslerW7-6(1), 6-4Grass
Jun 6Boss OpenQualifying 1st RoundOrlando LuzW6-1, 6-3Grass
Jan 11Australian OpenQualifying 1st RoundMartin DammL3-6, 6-3, 4-6Hard

How he is doing nowThrough Oct 21

2026 record1-2hard 0-1, grass 1-1
Last 105-5LLWLLWLWWWNewest first. Two losses in a row.

Agatha on Gauthier Onclin

Every graded call Agatha sealed on his matches since Oct 1, 2026, newest first. Each is 1 unit at its sealed price; the number opens its receipt.

Record1-2Units-1.73u3 graded calls
DateMatchCallPriceResultUnitsReceipt
Oct 21vs Jan-Lennard StruffPREDJan-Lennard Struff to win-370WON+0.27u#1473
Oct 18vs Clement ChidekhPREDGauthier Onclin to win+240LOST-1.00u#1306
Oct 17vs Harry WendelkenLEANHarry Wendelken to win+100LOST-1.00u#1166

CareerPro since 2022

4years2022 to 2026
  1. 2024First ATP matchLost to Aleksandar Kovacevic, Australian Open
  2. 2026Career high No. 158Aug 24, 2026
  3. Oct 21, 2026Latest matchLost to Jan-Lennard Struff, BNP Paribas Fortis European Open

Grand Slam titles

AO0Round 1 (2025)0-2 in our records
RG0-
WIM0-
USO0-

First ATP match

Jan 10, 2024: lost to Aleksandar Kovacevic 3-6, 7-6, 6-7Australian Open, on hard

Latest match

Oct 21, 2026: lost to Jan-Lennard Struff 4-6, 2-6BNP Paribas Fortis European Open, Round 2, on hard court

Challenger finals

Challenger: 3 singles finals, 2 won. From 2024 to 2026.

Singles

  1. W
    May 2026Won the title at Cote d'Ivoire Open II, Ivory Coast (2) (hard), beating Michael Mmoh 6-3, 6-4.
  2. W
    Apr 2026Won the title at Cote d'Ivoire Open, Ivory Coast (hard), beating Hamish Stewart 7-6(7-5), 7-6(7-2).
  3. L
    May 2024Runner-up at Prague Open, Czech Republic (clay), losing to Jiri Vesely 2-6, 6-3, 6-7(3-7).

Most often against

The players he has met most in our records, with the head-to-head.

Aleksandar Kovacevic2 meetings
1-1All square

Last: Jan 7, 2025, Australian Open Qualifying 2nd Round, won

Sources and updates

Results and schedules come from Agatha's own records of the ATP Tour.

Updated Nov 12, 2026, 7:15 AM ET. Results and form refresh after every match; biography facts are checked weekly.